Ответ: \[(2x - 3)^{2} - 9 = 0\] \[(2x - 3 - 3)(2x - 3 + 3) = 0\] \[2x(2x - 6) = 0\] \[4x(x - 3) = 0\] \[x = 0;\ \ x = 3.\]